the caller really was her grandson. >> translator: i thought to myself, oh, no. my grandson is in trouble. i've got to help him. >> reporter: some pretend to be covering personal things, such as abortions. they ask their victim, who are usually elderly, to transfer large amounts of money to a bank account. con artists stole about $47 million. a year later they stole about $312 million. police crackdowns and awareness campaigns led to a drop in fraud cases in 2009. for example, authorities worked with banks to freeze suspect accounts.